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| Zhang, Zhiyi | 1 |
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Peer reviewedZhang, Zhiyi; Schoeps, Nancy – Psychometrika, 1997
Two estimators of effect size that are based on the sample quartiles are proposed and studied. One is for the situation where a treatment effect is evaluated against a control group, and the other is for a situation in which two parallel treatments are compared. Both are illustrated and evaluated. (SLD)
Descriptors: Comparative Analysis, Control Groups, Effect Size, Estimation (Mathematics)
